Originally Posted by Crbartz

Thanks guys for the input-I guess I asked the question because this is a replacement for my 03 f150 with a 5.4 which got much better gas mileage, and since I didn't purchase the truck new and don't have the window sticker it was more of a question to see if that was normal not to complain about mpg. I understand how much the truck weights and I understand that many factors affect mpg but this was more on a broad spectrum to assure me that as a new pretty stoked owner there wasn't something wrong right away with mileage I'm getting....if need be I can pm anymore questions I have directly to you for your approval before posting in a forum literally designed for me to ask these stupid questions I have...either way thanks again for the responses!

Originally Posted by 06FX4Colorado

I'm averaging between 11 city and 15 highway. But I calculated an average of 13 on a full tank. Oh yea I'm on 6" lift and 35s.

Originally Posted by BIGDAWG78

heres what I don't get... I can absolutely understand worrying about MPGs if only getting like 6 MPGs in the city or something way off the norm or like only getting 80 MPGs for a full tank... but seriously 13.4 MPGs, 11.2 MPGs, whats with the .4 or .6 ? When someone asks me what I get for gas mileage- I say about 12 in the city about 16 highway and "its worth every penny!" we drive 6000 lbs. plus trucks with V-8s, stop worrying about gas mileage unless you are getting some crazy low number or on the other side of the coin and you get 34 MPGs.... and stop with the 13.8 or 10.97 crap! The window stickers from the factory say are trucks are estimated to get 13 city and 17 highway.... So unless you are getting some number way off from these don't be concerned. your gas mileage will always change depending on numerous factors; how full the tank is, which way the wind is blowing, how many people are in it, if you have the AC on, if you're drunk and driving foolish, if you have a hot chick with you and are getting road head......

Originally Posted by effects4

HAHA! Dude I hear ya but...

I've drove 9,969.0 (put the .0 in just for you!!!) between August 29th and my last fill up yesterday. I am **** about keeping track of every fill up, mileage per tank, and maintenance to see what, if any, changes there are. I can tell you so far that Level II highway mpg is 13.465 versus 13.099 on level I, both on 87 octane. 89 octane makes no difference. So why waste the $$? Now I'm playing with ignition timing. So now you can see why some of us carry out the decimal.

I've also noticed that I get better gas mileage when I fill up in Greenville, NC rather than my hometown. Not to mention its $0.15 cheaper on average.

I also get better mpg heading driving east versus driving west. hahaha its that 420 foot drop over 80 miles. Or maybe air temperature difference from heading east in the mornings when its cooler?!

And running the AC makes no noticeable difference in my rig.